cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A323979 Expansion of determinant of 120 X 120 matrix M_{u,v} = q^(maj(u*v^-1)) where u, v in S_5 and maj = MacMahon's major index (cf. A008302).

Original entry on oeis.org

1, 0, -60, -80, 1680, 4704, -25660, -128640, 150420, 2062160, 2230548, -19194240, -63712740, 57664320, 724837020, 1055778256, -3865916310, -17164305600, -7987686380, 111558610080, 309981082824, -83708879920, -2310552888780, -4721178106560, 4129349973890, 39231750371520, 64807106219940, -86501225014320, -580167287063160, -840576756949440, 1330114847500228
Offset: 0

Views

Author

N. J. A. Sloane, Feb 10 2019

Keywords

Crossrefs

Formula

G.f.: (1-q^2)^60*(1-q^3)^80*(1-q^4)^90*(1-q^5)^96.

A323977 Expansion of determinant of 6 X 6 matrix M_{u,v} = q^(maj(u*v^-1)) where u, v in S_3 and maj = MacMahon's major index (cf. A008302).

Original entry on oeis.org

1, 0, -3, -4, 3, 12, 5, -12, -18, 0, 18, 12, -5, -12, -3, 4, 3, 0, -1
Offset: 0

Views

Author

N. J. A. Sloane, Feb 10 2019

Keywords

Crossrefs

Formula

G.f.: (1-q^2)^3*(1-q^3)^4.
Showing 1-2 of 2 results.